| Castleman Mortgages Limited | Financial services | 2022 |
| Catapult Design & Development Limited | Professional & scientific | 2007 |
| Catherine Reading Limited | Other services | 2003 |
| Cathy Stephens Designer Jewellery Limited | Wholesale & retail | 1986 |
| Cathy Stephens Jewellery Limited | Wholesale & retail | 1983 |
| Cattows Farm Shop & Tea Room Ltd | Hospitality | 2019 |
| Cavendish House (Nottingham) Management Company Limited | Administrative & support | 2006 |
| Cavendish Stud Ltd | Agriculture & fishing | 2020 |
| Cavendish Villas Management Company Limited | Households | 1999 |
| Cavt Ltd | Professional & scientific | 2013 |
| CB Valuations Ltd | Real estate | 2020 |
| CBD Grow Tech Ltd | Manufacturing | 2018 |
| Cbem Ltd | Wholesale & retail | 2023 |
| CBS (Accounting) Limited | Professional & scientific | 2006 |
| CBS Products (KT), Ltd | Manufacturing | 2017 |
| CCM Building & Roofing Contractors Limited | Construction | 2021 |
| CCS Mechanical Services Limited | Professional & scientific | 2010 |
| Cedar Court Management Co. (Leicester) Limited | Households | 1986 |
| Cedar House Properties Limited | Real estate | 2018 |
| Cell Phone Repair Centre Ltd | Other services | 2025 |
| Celst Ltd | Transport & logistics | 2024 |
| Cenex (Centre of Excellence for LOW Carbon and Fuel Cell Technologies) | Professional & scientific | 2005 |
| Cenex Consultancy Services Limited | Professional & scientific | 2019 |
| Cenex Limited | Extraterritorial | 2023 |
| Censol Limited | Wholesale & retail | 1989 |
| Centinel AI Ltd | Information & communication | 2024 |
| Cento Limited | Extraterritorial | 2008 |
| Cento Personnel Limited | Administrative & support | 2009 |
| Central Car Paints Ltd | Other services | 2013 |
| Central Combustion Services Ltd | Construction | 2021 |
| Central Controls Ltd | Manufacturing | 2016 |
| Central Conveyor Belting & Accessories Ltd | Professional & scientific | 2012 |
| Central Conveyors Holdings Ltd | Financial services | 2018 |
| Central Conveyors Limited | Manufacturing | 2007 |
| Central Hand Carwash Ltd | Administrative & support | 2026 |
| Centre International Supermarket Limited | Wholesale & retail | 2019 |
| Centre Properties Limited | Professional & scientific | 2005 |
| Centura Management Consulting Limited | Information & communication | 2015 |
| Cephas TEC Ltd | Manufacturing | 2020 |
| Cerberus Contract Recovery Limited | Professional & scientific | 2026 |
| Certain Indexes Limited | Professional & scientific | 1989 |
| Certified Security Solutions Ltd | Manufacturing | 2021 |
| CET Financial Consultants Limited | Administrative & support | 2024 |
| CET Limited | Manufacturing | 2000 |
| CFA Antiques and Interiors Limited | Wholesale & retail | 2025 |
| CGF Composites Ltd | Manufacturing | 2023 |
| CH Sparks Ltd | Construction | 2018 |
| Chamberlain & Binch Ltd | Real estate | 2018 |
| Champagne Occasions LLP | | 2012 |
| Champion Property Limited | Real estate | 2006 |
| Champions (UK) PLC | Professional & scientific | 2001 |
| Champions Group Holdings Limited | Financial services | 2020 |
| Champions Holdings Limited | Financial services | 2024 |
| Champions PR Limited | Professional & scientific | 2005 |
| Champions Subsidiary 1 Limited | Extraterritorial | 2012 |
| Chandni Luxury Personal Shopper Ltd | Wholesale & retail | 2024 |
| Change Success Ltd | Professional & scientific | 2022 |
| Chapel Close Holdings Limited | Financial services | 2021 |
| Chapel Close Properties Limited | Real estate | 2021 |
| Chapman and Partners Limited | Real estate | 2024 |
| Chapter 3 Transformation Ltd | Professional & scientific | 2023 |
| Charles Bentley & SON Limited | Wholesale & retail | 1979 |
| Charles Bentley Properties Limited | Real estate | 2015 |
| Charles Crawford and Partners Limited | Professional & scientific | 2017 |
| Charles Lowe & Sons Limited | Wholesale & retail | 1959 |
| Charlesworth Financial Consulting Limited | Professional & scientific | 2016 |
| Charlesworth Financial Planning Limited | Financial services | 2003 |
| Charlie Kaane Enterprises Ltd. | Manufacturing | 2016 |
| Charlotte Johnson Healthcare Limited | Health & social care | 2022 |
| Charlotte Vass Finance Ltd | Financial services | 2022 |
| Charnwood 20:20 | Administrative & support | 2007 |
| Charnwood Accountants & Business Advisors LLP | | 2004 |
| Charnwood Accountants Limited | Professional & scientific | 2025 |
| Charnwood Accounting Services Limited | Professional & scientific | 1986 |
| Charnwood Airport Taxis Limited | Transport & logistics | 2019 |
| Charnwood Arts | Information & communication | 2010 |
| Charnwood Arts Therapy Service Ltd | Education | 2015 |
| Charnwood Auto Services Limited | Wholesale & retail | 2009 |
| Charnwood Brewery LLP | | 2014 |
| Charnwood Build Ltd | Construction | 2024 |
| Charnwood Business Park Management Company Limited | Real estate | 2003 |
| Charnwood Carpentry Ltd | Manufacturing | 2026 |
| Charnwood Catering Ltd | Wholesale & retail | 2026 |
| Charnwood Citizens Advice Bureau | Other services | 2003 |
| Charnwood Coatings UK Limited | Manufacturing | 2022 |
| Charnwood Commercials Ltd | Wholesale & retail | 2021 |
| Charnwood Contracts Ltd | Construction | 2026 |
| Charnwood Counselling Limited | Health & social care | 2026 |
| Charnwood Creatives Ltd. | Arts & recreation | 2013 |
| Charnwood Dance Properties Limited | Real estate | 2021 |
| Charnwood Development Services Ltd | Construction | 2015 |
| Charnwood Dog School Ltd | Other services | 2020 |
| Charnwood Eco Hub CIC | Professional & scientific | 2023 |
| Charnwood Estate Developments Limited | Extraterritorial | 2013 |
| Charnwood Fasteners Limited | Wholesale & retail | 1981 |
| Charnwood Flooring and Interiors Ltd | Wholesale & retail | 2015 |
| Charnwood Flooring Ltd | Wholesale & retail | 2024 |
| Charnwood Foraging Ltd | Other services | 2023 |
| Charnwood Forest Golf Club Limited | Arts & recreation | 2018 |
| Charnwood Funeral Services Limited | Other services | 1981 |